dtfhrkop



' No Model.)

P. I e -Sh eet s I BAKERS 0m, No. 379941. Patented Mar 27f.1.888

N, PETERS. Fhulwlilhograpber. Washington l C.-

' UNITE STATES PAT NT OFF CE.-

FRITZ Dl lHRKOP, OF NEW YORK, N. Y. a

' BAKERS OVEN.

SPECIFICATION forming part of Letters Patent No. 379.941, dated March 27 1888.-

Application filed August 6, 1887.

To all whom it may concern;

Be it known that I, FRITZ DijHRKQP, of the city of New York, county and State of New York, have invented a new and improved Bakers Oven, of which the following is a specification. 1

This invention relates to various improvements in a bakers oven, and more particularly to an arrangement of dues, whereby a uniform line 22 v, Fig. 1. Fig. 3' is a horizontal section on line to to, Fig. 1. Fig. 4 is a horizontal section on line a: m, Fig. 1. Fig. 5 is a horizontal section on line 3 y, Fig. 1. Fig. 6 is a detail front view of the oven-door; Fig. 7, a vertical section on line 2 2, Fig. 6; and Fig. 8, a detail back view of part of the roof of the baking-chamber.

The letter'a represents the fire-place of a bakers oven, openingtoward the rear of the same. From the grate the heat and products of combustion pass first forward and around a fire-wall, b, thence backward through the upper part, a, of the fire-place, and thence around afire-wall, 0, into a number of parallel 'flues, d d, Fig. 3, extending directly beneath the bottom e of the baking-chamber. This bottom is composed of two .walls of fire-brick inclosing a bed of sand. From the flues d the products of combustion enter a transverse passage, d, that leads them to two upright fines, f, located at the right and left-of the baking-chamber 9, Figs. land 4. From the upright fines f the products of combustion pass above the baking-chamber g and between two arched roofs, g h, divided by,a heatingspace. This heating-space has a central part-ition, 5, two lateral inclined partitions,j, and two short deflecting-walls, is, Fig. 5.

The products of combustion emerging from fines fare deflected by walls It against inclined partitions j, around which they flow, to finally pass forward between such partitions and the central partition, i, and out into the smoke-stack Serial No. 246,252. (No model.)

Z. By this construction both the bottom and the Q top of the baking-chamber are thoroughly and properly heated. Thefire-chamher a is also directly connected to the heating-space between the arched roofs g h by means of direct upright fines m, Figs. 1 and 2, by' means of which the heat may, if desired, be directly conducted to the top of the baking-chamber. Theseflues mare provided with suitable dampers. Y

n is a vent connecting the baking-chamber heating ofthe oven is produced without any cool or comparatively cool spaces.

In Figs. 6 and 7, o is the door of the bakingchamber 9, that turns inward on pivot-pin p, which is extended at one end beyond its bearing. This extension carries a balance-weight, q, and hasa notched end, by which it graspsa gas-cock, r, in a pipe, 8, the burner of which is placed opposite a mica window in the baking-chamber. This burner is never entirely extinguished. When the door is opened, the balance-weight will maintain it at any desired inclination,'and at the same time the flame from the burner will be turned up as long as the door is maintained by the weight in its open position. When the door is closed, the flame will be automatically turned down.

Fig. 8 shows the mode in which the roofg is anchored. The series of fire-bricks g composing this roof are flanked at each I edge by an angle-iron, 9 having a hookshaped projection, g, that holds a plate, hearing against the faces of the fire-bricks and preventing their longitudinal displacement. g is one of a set of upright metal plates placedagainst the edge of angle-iron 9 The plates 9 at opposite sides of the roof are connected by means of bolts and nuts, and thus the entire roof is properly strengthened.

I claim as my invention 7 y 1. The combination, in a bakers oven, of

fire-place a and chamber 9, with upright flues f, and double-roof g h, having inclined partitions j and deflectors k, substantially as specified.

2. The combination, in a bakers oven, of fire place a. with the parallel fines d and transverse flue d beneath the baking'chamber g, and with the upright fluesfat the sidesthereof, and with a double roof having central partition, i, inclined partitionsj, and deflectors. k, substantially as specified.

3. The combination, in a bakers oven, of fireplace a, having firewalls b c, with the fines d, transverse flue d, upright fiues f m, double roof 9 h, partitions i j, deflectors k, vent n, and smoke-stack Z, substantially as specified.

4. The combination of oven-door 0, having Witnesses:

F. v. BRIESEN, WM. A. LOWE. 

